BMW 440i Performance Air Intake - Dinan - Closed Cold Air Intake - Carbon Fiber - 2019-2021. A sealed carbon fiber system for the B58 that boosts airflow and sharpens throttle response while resisting heat soak.

Developed from Dinan’s proven B58 program, this intake uses a 30% larger airbox and a 34% larger filter area to feed your 440i more cold air. An 8% larger air mass meter housing and an optimized carbon fiber intake tube remove factory baffling and the Helmholtz chamber that disrupt flow, yielding smoother, faster breathing with minimal sound increase from a closed system. Dinan testing reports gains of up to +15 hp and +13 lb-ft at 6000 rpm on a stock vehicle. CARB EO D-176-56 makes this intake 50-state emissions legal for applicable 2019-2021 440i models.

Features

• Closed, fully sealed carbon fiber construction
• 30% larger airbox for improved insulation from heat
• 34% increase in filter area for higher flow
• 8% larger air mass meter housing
• Optimized carbon fiber intake tube; reduced restrictions
• Improved throttle response with minimal sound change
• Quick, easy, bolt-on installation

Questions or want it installed? Call Austin, TX at 512-982-9393 or our Los Angeles, CA area shop at 562-981-6800. We offer professional installation and customization at both locations and can help you plan your build.

If you are considering multiple items, contact us for potential shipping discounts.

We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov